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Date: Sun, 25 Jan 1998 23:33:45 +0100 (MET)
From: Ugo Paternostro <paterno@dsi.UNIFI.IT>
Subject: Re: Cirrus Logic PD6729
In-reply-to: <199801251859.LAA28629@mt.sri.com>
To: Nate Williams <nate@mt.sri.com>
Cc: freebsd-mobile@FreeBSD.ORG
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On 25-Jan-98 Nate Williams wrote about "Re: Cirrus Logic PD6729":
> This is a -current box? I didn't realize that. All bets are off as to
Yes, it is: I don't like easy things, you know... ;-)
> stability. These panics might not even be related to the PCCARD stuff
> because of the VM stuff (alhtough they might be mostly worked around as
> of a couple of days ago.)
No, wait, please: the panic at the end (while unmounting disks) is surely
related to a vm problem, in fact it happens while the kernel is in free(), but
I would bet that the panic at the even boots is all but a vm problem...
>> What about interrupt vector initialization? Where does irq 10 vector point
>
> Unless the FreeBSD kernel attaches a driver to it, they are all attached
> to IRQ 7, the 'junk' IRQ.
Sorry, I don't understand that: you mean that every IRQ will fire the same
handler?
> [ Success deleted ]
You're too optimist :(
It still *seems* to work: this is an extract of "dmesg":
[...omissis...]
apm: found APM BIOS version 1.2
Freelist of IRQ's <0x8e20>
PC-Card Cirrus Logic PD672X (5 mem & 2 I/O windows)
pcic: controller irq 5
pcic_probe: slot 0: ADDDWINE: 0x60
pcic_probe: slot 0: INT_GEN: 0x6a
pcicintr: unit 0
^^^^^^^^^^^^^^^^^^
pcic_probe: slot 1: ADDDWINE: 0x00
pcic_probe: slot 1: INT_GEN: 0x00
Initializing PC-card drivers: ep sio
Intel Pentium F00F detected, installing workaround
Card inserted, slot 0
WARNING: / was not properly dismounted.
OSS/FreeBSD loading, address = f3fbc020
Map I/O 0x300 (size 0x10) on Window 0
allocate_driver: slot 0: irq 10
pcic_mapirq: slot 0: irq 10
ep0: utp/bnc[*UTP*] address 00:60:08:22:1e:cb
as you can see I added some printf, to understand what is happening at boot
time. I enphatized the pcicintr line, to show you that as soon as the pcic
driver powers the board on, it generates an interrupt.
If I compile without the PCIC_DEBUG and the (new) PCIC_DEBUG_UGO defines, the
kernel crashes, and the machine don't see the HD any more.
BTW, the "WARNING: / was not properly dismounted." message comes of the vm
panic, at the shutdown.
> Let me know when you get things ready.
I will test the patches until I'm able to reboot without any panic (vm or PCMCIA
related), then I will send them to you.
> Nate
Bye, UP